Brown — The Subsidence of Torsional Oscillations. 



Table III. 

 Eigidity = 805 x 10 6 grammes per sq. cm. 



The fatigue of the wire was also tested when in the state of hardness 

 indicated in Table III, with an alternating magnetic field of frequency 50, 

 and was found to be - 095. and was attained in 20 minutes. 



Table IV. 

 Eigidity == 780 x 10 6 grammes per sq. cm. 



The maximum fatigue in this case (Table IV) was found to be 0"04, and 

 took place in 25 minutes, with an alternating magnetic field of frequency 50. 



Table V. 

 Eigidity == 770 x 10 6 grammes per sq. cm. 



